4.7 intermittent mis fire user load during light throttle no codes
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If it is CPS why would the CPS not throw a code and it give me a code for the transmission instead
Administrator
Joined: Apr 2010
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From: Clayton MI
The programming isn't perfect.... and the PCM can get confused about what is really going on..... I once worked on a car that was setting a trans code... which I spent a couple hours troubleshooting, reading various resources, until I stumbled across a 'side note' in one of the manuals, that some sensor or other failing could also set that code. The sensor was completely unrelated to the system is was working on... but, when I checked, sure as shooting, the sensor was bad. 15 dollar part solved the issue....
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Joined: Oct 2013
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From: Atlanta
I don't remember which brand and I wasn't paying dealer I have an acquaintance who is a Dodge technician who is going to lend me the scanner with the misfire counter and relearn my transmission for me. Free to be clear
If it is CPS why would the CPS not throw a code and it give me a code for the transmission instead
If it is CPS why would the CPS not throw a code and it give me a code for the transmission instead
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Alright, well, I hope the scanner works out. I know how it can be when $$$ is short. Save this link to the Mopar CPS on Amazon ($78) just in case. Sometimes you don't have a choice, esp if you have a cheap Autozone or some other crap CPS giving you trouble. https://www.amazon.com/Mopar-5602866...ustomerReviews
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Joined: Sep 2010
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From: Parker, SD
any thoughts about what I mentioned relating to the PCV valve ? Or lack of an EGR?
Also I had the O2 sensor glowing hot and still couldn't find t couldn't get to eit to budge it's in the worst possible position imaginable so I hit it with more blaster and walked away for a bit I don't know what else to throw at it
Also I had the O2 sensor glowing hot and still couldn't find t couldn't get to eit to budge it's in the worst possible position imaginable so I hit it with more blaster and walked away for a bit I don't know what else to throw at it
I could the hear the pressure bleeding off in the valve cover like 100% no mistaking where it was coming from. The gauge was losing pressure and I could pinpoint where that was at the button but I can also hear the pressure working its way through the top of the head at the same time
I put the new plugs on the passenger side where everything seemed fine. No plugs in the driver side yet. I'm going to go back out tomorrow and give it a go. When I was testing the side that was reading 150 it had to step up to that pressure. It didn't just go there on the first revolution. Had to crank a couple times. I'm assuming it's going to be the same thing for that side and in between the revolutions and the engine turning over I could hear the pressure bleeding off just to be clear cuz I appreciate the information you're giving me right now
I'm assuming that valve is open but should it close as the engines turning over if everything is ok with valve train ?
I put the new plugs on the passenger side where everything seemed fine. No plugs in the driver side yet. I'm going to go back out tomorrow and give it a go. When I was testing the side that was reading 150 it had to step up to that pressure. It didn't just go there on the first revolution. Had to crank a couple times. I'm assuming it's going to be the same thing for that side and in between the revolutions and the engine turning over I could hear the pressure bleeding off just to be clear cuz I appreciate the information you're giving me right now
I'm assuming that valve is open but should it close as the engines turning over if everything is ok with valve train ?
At this point almost sounds like an anti theft is triggered, is there a red light dot blinking on the dash, lower right side
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So after replacing the map sensor and just going through a lot of the electrical, the truck runs fine. The problem is the transmission is hunting specifically at light throttle. The TCC is engaging and disengaging now. How do I fix it?